From 28c1f8800b1cee13dc1d12c66a457675e6364561 Mon Sep 17 00:00:00 2001
From: regnat <rg@regnat.ovh>
Date: Wed, 9 Jun 2021 18:47:39 +0200
Subject: [PATCH] =?UTF-8?q?Don=E2=80=99t=20list=20known=20absent=20attribu?=
 =?UTF-8?q?tes=20in=20listChildren?=
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---
 src/libexpr/tree-cache.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/libexpr/tree-cache.cc b/src/libexpr/tree-cache.cc
index 2b7f783fb..e8e43b8ce 100644
--- a/src/libexpr/tree-cache.cc
+++ b/src/libexpr/tree-cache.cc
@@ -63,7 +63,7 @@ struct AttrDb
             "select id, type, value, context from Attributes where parent = ? and name = ?");
 
         state->queryAttributes.create(state->db,
-            "select name from Attributes where parent = ?");
+            "select name, type from Attributes where parent = ?");
 
         state->txn = std::make_unique<SQLiteTxn>(state->db);
     }
@@ -198,8 +198,10 @@ struct AttrDb
 
         auto queryAttributes(state->queryAttributes.use()(parentId));
 
-        while (queryAttributes.next())
+        while (queryAttributes.next()) {
+            if (queryAttributes.getInt(1) != AttrType::Missing)
             res.push_back(queryAttributes.getStr(0));
+        }
 
         return res;
     }